/*!

 @Name：layer mobile v2.0 弹层组件移动版
 @Author：贤心
 @Site：http://layer.layui.com/mobie/
 @License：LGPL

 */

;!function(win){

    "use strict";

    var doc = document, query = 'querySelectorAll', claname = 'getElementsByClassName', S = function(s){
        return doc[query](s);
    };

//默认配置
    var config = {
        type: 0
        ,shade: true
        ,shadeClose: true
        ,fixed: true
        ,anim: 'scale' //默认动画类型
    };

    var ready = {
        extend: function(obj){
            var newobj = JSON.parse(JSON.stringify(config));
            for(var i in obj){
                newobj[i] = obj[i];
            }
            return newobj;
        },
        timer: {}, end: {}
    };

//点触事件
    ready.touch = function(elem, fn){
        elem.addEventListener('click', function(e){
            fn.call(this, e);
        }, false);
    };

    var index = 0, classs = ['layui-m-layer'], Layer = function(options){
        var that = this;
        that.config = ready.extend(options);
        that.view();
    };

    Layer.prototype.view = function(){
        var that = this, config = that.config, layerbox = doc.createElement('div');

        that.id = layerbox.id = classs[0] + index;
        layerbox.setAttribute('class', classs[0] + ' ' + classs[0]+(config.type || 0));
        layerbox.setAttribute('index', index);

        //标题区域
        var title = (function(){
            var titype = typeof config.title === 'object';
            return config.title
                ? '<h3 style="'+ (titype ? config.title[1] : '') +'">'+ (titype ? config.title[0] : config.title)  +'</h3>'
                : '';
        }());

        //按钮区域
        var button = (function(){
            typeof config.btn === 'string' && (config.btn = [config.btn]);
            var btns = (config.btn || []).length, btndom;
            if(btns === 0 || !config.btn){
                return '';
            }
            btndom = '<span yes type="1">'+ config.btn[0] +'</span>'
            if(btns === 2){
                btndom = '<span no type="0">'+ config.btn[1] +'</span>' + btndom;
            }
            return '<div class="layui-m-layerbtn">'+ btndom + '</div>';
        }());

        if(!config.fixed){
            config.top = config.hasOwnProperty('top') ?  config.top : 100;
            config.style = config.style || '';
            config.style += ' top:'+ ( doc.body.scrollTop + config.top) + 'px';
        }

        if(config.type === 2){
            config.content = '<i></i><i class="layui-m-layerload"></i><i></i><p>'+ (config.content||'') +'</p>';
        }

        if(config.skin) config.anim = 'up';
        if(config.skin === 'top') config.anim = 'top';
        if(config.skin === 'msg') config.shade = false;

        layerbox.innerHTML = (config.shade ? '<div '+ (typeof config.shade === 'string' ? 'style="'+ config.shade +'"' : '') +' class="layui-m-layershade"></div>' : '')
            +'<div class="layui-m-layermain" '+ (!config.fixed ? 'style="position:static;"' : '') +'>'
            +'<div class="layui-m-layersection">'
            +'<div class="layui-m-layerchild '+ (config.skin ? 'layui-m-layer-' + config.skin + ' ' : '') + (config.className ? config.className : '') + ' ' + (config.anim ? 'layui-m-anim-' + config.anim : '') +'" ' + ( config.style ? 'style="'+config.style+'"' : '' ) +'>'
            + title
            +'<div class="layui-m-layercont">'+ config.content +'</div>'
            + button
            +'</div>'
            +'</div>'
            +'</div>';

        if(!config.type || config.type === 2){
            var dialogs = doc[claname](classs[0] + config.type), dialen = dialogs.length;
            if(dialen >= 1){
                layer.close(dialogs[0].getAttribute('index'))
            }
        }

        document.body.appendChild(layerbox);
        var elem = that.elem = S('#'+that.id)[0];
        config.success && config.success(elem);

        that.index = index++;
        that.action(config, elem);
    };

    Layer.prototype.action = function(config, elem){
        var that = this;

        //自动关闭
        if(config.time){
            ready.timer[that.index] = setTimeout(function(){
                layer.close(that.index);
            }, config.time*1000);
        }

        //确认取消
        var btn = function(){
            var type = this.getAttribute('type');
            if(type == 0){
                config.no && config.no();
                layer.close(that.index);
            } else {
                config.yes ? config.yes(that.index) : layer.close(that.index);
            }
        };
        if(config.btn){
            var btns = elem[claname]('layui-m-layerbtn')[0].children, btnlen = btns.length;
            for(var ii = 0; ii < btnlen; ii++){
                ready.touch(btns[ii], btn);
            }
        }

        //点遮罩关闭
        if(config.shade && config.shadeClose){
            var shade = elem[claname]('layui-m-layershade')[0];
            ready.touch(shade, function(){
                layer.close(that.index, config.end);
            });
        }

        config.end && (ready.end[that.index] = config.end);
    };

    win.layer = {
        v: '2.0',
        index: index,

        //核心方法
        open: function(options){
            var o = new Layer(options || {});
            return o.index;
        },

        close: function(index){
            var ibox = S('#'+classs[0]+index)[0];
            if(!ibox) return;
            ibox.innerHTML = '';
            doc.body.removeChild(ibox);
            clearTimeout(ready.timer[index]);
            delete ready.timer[index];
            typeof ready.end[index] === 'function' && ready.end[index]();
            delete ready.end[index];
        },

        //关闭所有layer层
        closeAll: function(){
            var boxs = doc[claname](classs[0]);
            for(var i = 0, len = boxs.length; i < len; i++){
                layer.close((boxs[0].getAttribute('index')|0));
            }
        }
    };

    'function' == typeof define ? define(function() {
        return layer;
    }) : function(){

        var js = document.scripts, script = js[js.length - 1], jsPath = script.src;
        var path = jsPath.substring(0, jsPath.lastIndexOf("/") + 1);

        //如果合并方式，则需要单独引入layer.css
        if(script.getAttribute('merge')) return;

        document.head.appendChild(function(){
            var link = doc.createElement('link');
            link.href = path + 'need/layer.css?2.0';
            link.type = 'text/css';
            link.rel = 'styleSheet'
            link.id = 'layermcss';
            return link;
        }());

    }();

}(window);